Before pooling data on effect sizes (a generic term for parameters of interest in the context of meta-analysis) from different studies, it is important to test for homogeneity of the effect sizes. A well known test for homogeneity is based on Cochran’s chisquare statistic. Our recent investigation showed that when the effect size of interest is a pairwise correlation, Cochran’s homogeneity test...

Tutorial Part 1: Linear modeling Linear models and linear mixed models are an impressively powerful and flexible tool for understanding the world. This tutorial is a decidedly conceptual introduction to this class of models. The focus is on understanding BLOCKIN BLOCKIN what these models are doing … and then we'll spend most of the time applying this understanding, using the R statistical progr...

In this paper we present a minimallysupervised approach to the multi-domain acquisition of wide-coverage glossaries. We start from a small number of hypernymy relation seeds and bootstrap glossaries from the Web for dozens of domains using Probabilistic Topic Models. Our experiments show that we are able to extract high-precision glossaries comprising thousands of terms and definitions.

We describes a framework in which to view the end-to-endindependently-verifiable (E2E) voting systems based on mixnets. We use the framework to invent new systems that combine front and back-ends from existing systems.

Consider a list of n files whose popularities are random. These files are updated according to the move-tofront rule and we consider the induced Markov chain at equilibrium. We give the exact limiting distribution of the search-cost per item as n tends to infinity. Some examples are supplied.

This workbook is a result of several years experience in applying geographic information systems (GIS) technology to typical forestry, natural resource management, and environmental problems. Many of the terms and concepts introduced in this book have been compiled from a variety of different sources. These include some of the prevalent text books in the field, but most have been firmly implant...

Reliability of systems used in spa e, avioni and biomedi al appli ations is highly riti al. Su h systems onsist of an analog front-end to olle t data, an ADC to onvert the olle ted data to digital form and a digital unit to pro ess it. It is important to analyze the fault sensitivities of ea h of these to e e tively gauge and improve the reliability of the system. This paper addresses the issue...

A CUSUM type test for constant correlation that goes beyond a previously suggested correlation constancy test by considering Spearman’s rho in arbitrary dimensions is proposed. Since the new test does not require the existence of any moments, the applicability on usually heavy-tailed financial data is greatly improved. The asymptotic null distribution is calculated using an invariance principle...

The members of SIG/CR have been challenged to consider seriously what lies ahead in knowledge organization. To plan for the future, it is important to understand the past. This paper provides a brief overview of problems in classification research from 1957 until 1964 as well as insights into the creation of the Classification Research Study Group (CRSG), which formed the nucleus of SIG/CR in 1...

Credit migration matrices are cardinal inputs to many risk management applications. Their accurate estimation is therefore critical. We explore three approaches, cohort and two variants of duration – time homogeneous and non-homogeneous -and the resulting differences, both statistically through matrix norms and economically through credit portfolio and credit derivative models. We develop a tes...